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WorksheetsCardiac Cycle
Total questions: 19
Worksheet time: 10mins
The entrance to the ascending aorta is guarded by
an atrioventricular valve
bicuspid valve
semilunar valve
tricuspid valve
The opening of semilunar valves is due to
increased ventricular pressure
decrease ventricular pressure
increased aortic pressure
increase in artrial volume
Diastole refers to what action?
Passive filling
Contraction
Systole refers to what action?
Passive filling
Contraction
Which of the following represents the Purkinje fibres?
A
B
C
D
Which of the following represents the sino-atrial node?
A
B
C
D
In which direction does an electrical impulse travel across the ventricles?
Top to bottom
Bottom to top
Left to right
Right to left
If there is higher pressure in the aorta, there will be no movement of blood out of the ventricle
True
False
If ventricular pressure is low, what will happen to the arterioventricular valves?
close
open
The chamber that receives oxygenated blood from the lungs
Right Ventricle
Left Ventricle
Right Atrium
Left Atrium
State the phase of cardiac cycle shown in the diagram.
Atrial systole, ventricular systole
Atrial diastole, ventricular systole
Atrial systole, ventricular diastole
Atrial diastole, ventricular diastole
State the phase of cardiac cycle shown in the diagram.
Atrial systole, ventricular systole
Atrial diastole, ventricular systole
Atrial systole, ventricular diastole
Atrial diastole, ventricular diastole
Identify part numbers 3 and 5.
3: right atrium; 5: aorta
3: left atrium; 5: aorta
3: right atrium; 5: pulmonary artery
3: left atrium; 5: pulmonary artery
The graph shows pressure changes in the left atrium, left ventricle and aorta during a cardiac cycle.
What would the curve look like for the right ventricle, if placed on this graph?
same pattern but to the right of the left ventricle curve
different pattern and to the right of the left ventricle curve
same pattern but lower than the left ventricle curve
different pattern and lower than the left ventricle curve
What is happening at point A?
The bicuspid valve opens for blood to flow from left atrium to left ventricle
The bicuspid valve opens for blood to flow from left ventricle to aorta
The bicuspid valve closes to prevent backflow of blood from left atrium to left ventricle
The bicuspid valve closes to prevent backflow of blood from left ventricle to left atrium
